Intermittent inductive train-control receiver



C. S4. BUSHNELL April'zs, 1929.

INTEHMITTENT INDUCTIVE TRAIN CONTROL RECEIVER 5 Sheets-Sheet Filed Oct. 11; 1926 ATTORNEY d v LE April 23, 1929. c. s. BusHNELL INTERMITTENT TNDUCTAIVE TRAIN CONTROL RECEIVER Filed oct. 11, 192s s sheets-sheet April 23, 1929. c. s. BusHNELL 1,710,655-

INTERMITTENT INDUCTIVE TRAIN CONTROL RECEIVER Filed oct. 11, 192e' lneans of clamps l0, bolted on oppoaite sides ot the squared `upper eore end ll, by bol 12 passing through such. end of Athe Core, The lower dise 9 is held in place on the Gore by apoleshoe 13 tirst screw eonneeted to the core end, and then, wehled to the eore. lllaeh pele shoe 13 .slotted as at 14, to eut down circulation ot eddy Currents as `far as possible, and thus premnt iron lo s.

Eaeh coil l) and S with its rorrespendiru; eoil, is pas-:wd up into the easiiu; through the bottoni opening, into ei'ilarg'ed eylindrif ral elsing ends lo, and held, thei tin by lfiolts 1G connecting the pole n'noe to 'tlanges li the easirmand surrouiuling the bottoni opene ing. A

Y screw 19 having' a teelt nut parir through the top ot the eas and bears A, inst a Washer 2l), haring a eentrunn;` linger 2l received in a. .soeket in the upper end oit the (tore. The seri-XW l!) arts to hold the eore and its eoil firmly in pl' ee in the :sin Ywasher il() operating to d i rihute the pre. ot' the serew `over the core laniinre to prerentdistortion ol the same.

A baelr strap as best shown in Fie'. built up o'l laniinze, and ot' a general U f i is passed through the eaning; side og With the ends ol its legs abutt i ly against the squared upper einli-K eores. The eoil core in each eine is iirnlly ('laniped to the haelt strap a nd an inwardly projeeting boss termed on the easinggj, by a T--head bolt Q4; passing; through the rear of the easing, the upper end ot theroil core, and a. leg ot the baek stra p, with a elannying` nut and `washer :'25 on its front tlueaded end. A portion of the lan'iina` ol. vthe beek strap is eut away around the hole `tor the bolt 2l to aetuimniodate a beaming plate for distributingv the pr eure ot the bolt n.. over the laminte ot' the haelt strap.

The lun-it lap is further held in position within the easing, by tu'o through boltsl 27.

)n refill-ringe; tao-Figs. t and tl in partienlar, it will be noted tlnitthe pole shoes are positioned uns);uunetrieally relatire to the Coil peores, and rover only a portion ol the width ol the bottom opeainj-g- `in the resine;n A plate 2S, et brass or other noninaenetie material, is bolted to the easingr by boltf: Qi), to eorer the i'einaininaF width olf the loottoin openiiuf ot the easing. thi 11 arranggfjef nient olZ parts, the Centers of the pole shoes 1 3 are positioned outwardly ot the eenter line of the eoils and easing; proper, to thus position the gole shoes the proper distance away 'troni the vehicle to Whieli the reeeirer is to be fastened, whili at the saine time perniittingr the center of 0'rarity of the entire receiver to fall inward. y ot the center lines of thepole shoes, thereby to iner se the stability of the support o'l the` receiver on the vehiele.

A plate 30 of insulating` material is bolted to the flanges around `the bottom opening oi the easing, to elose the rest `ot the opening and prevent ent ance ol' foreign matter.

The side plate 3 is connected to the back strap by nieans of screws 3l, the plate 3 having two circular openings 32 to aecomniodate the nuts on the T head holt.

Care is taken, in :fastening the coils, core, baek strap, and pole shoes to the xasing, to thoroughly insulate them from the easing, at all points ot eontaet, by means of insulating wznfshers and gaskets, and insulating bushing tor the bolts, all as shown on the drawings. Further, suitable packingl gaskets are provided ttor the various enter pla: connected to the easing, and the Connecting' bolts, as

33 in fastened to integral lugs let on the easintr, and the four terminal wires, two oreaeli Coil., are ronneeted to 'four lead in wires 35, by rlalnpingg thein on terminal posts `36 on the beard 33. A rover bleek 317 is fastened over the board lll by .screws 38. The wires for the eoilu rainbe brought out otf the easing through either end, or both ends according eonvenienee dietates. The eenetinetion described above operates "illy intereonneet the coils, eore, and i, so as to prevent any relative movement ther :Ween due to jars and viln'atiouT and prevents, in. a simple and effect-ive manner, Shifting oi the Coils on the eore, as is .intere liable oil. oeeurrenee when the coils are Wound on spools, and the spoolsslipped onto the Core.

For aiding in adjustahly and seeurely fastening; the receiver to a Vehicle, the arms A are turnislied with positioning screws 39, earried in. integral lugs 4;() at the upper ends of the arms, and extend parallel "to elongated vanti-Pal, slots 4l .in the arms. The arms A eaeh hay a saw toothed rear surface 42 and are sirfieed so as to straddle a railway vehicle joui al. hex 4:3, with their suritaees 4L interloelo e; the eonneeting members or Washlft .fitted by means of arms 45, over extending lugs 4G east integral with the journal. box. The lugs @t6 have slots 4 7 reeel vin eouneeting bolts 4S with theirheaids 419, held haelt of the lugs. The connecting bolts extend through the lugs 4G, the Washboards, a nd slots -ll .in the arms A, and earl' flzquare washers 5() bearing' againstmaehined surrinnuling the slots lll, and held drawing the cooperating toothed parts 42 and 44 together to firmly clamp the receiver in place. Then the positioning bolts 39, which are not intended to carry any of the Weight of the receiver While in operation, are screwed down to lightly bear against the square Washers 50, and are then locked in place. lf necessary to remove the receiver from the vehicle, the locked positioning bolts 39 permit ready re-attaching of the receiver in its previous adjusted position. This attaching means permits ready adjustment of the receiver .in a vertical direction to compensate for Wear on the rails 52, and the car Wheels 53.

The. above specific description of one form of device embodying the present invention has been given solely by Way of illustration, and not intended, 1n any7 manner whatsoever, in a limiting sense. O iviously, this invention can assume many different physical forms, and is susceptible of numerous modifications, and all such 'forms and modifications are de si'red to be included by this invention, as come within the scope of the appended claims.

Having described my invention, I now claim:d 4

l. 'In a receiver, a casing, means for fastening the casing to a vehicle, a core in the casing, coils on the core, and pole shoes fixed to the core and each positioned with its center line to that side of the core center line Which is remote 'from the vehicle.

2. ln a receiver, a casing, means to fasten the casing to a vehicle, a core and coils housed in the casing, and pole shoes on the core offset from the center line of the core and a 'ay from the vehicle side of the casing, so as to position the pole shoes outwardly of the casing.

3. ln a receiver, a casing, core and coil structure in the casing, spaced projecting arms on the casing, and means for adjustably fastening lthe arms on opposite sides of a car truck journal box.

Ll. ln a receiver, a casing, core and coil structure in the casing, spaced projecting arms on the casing, in combination with a car truck journal box, a lug projecting to each side of the journal box, and means for adjustably fastening the arms to the lugs.

5. In a receiver, a casing, core and coil structure in the casing, spaced projecting arms on the casing, a car truck journal box, lugs on the sides ofthe box, slots in the casing arms, bolts carried by the lugs and passing through the slots, and nuts on the bolts for adjustably clamping the casing arms to the journal box lugs.

6. In combination, a receiver for train control, spaced arms on the receiver, a car truck `journal box straddled vertically by the said arms, and means for adjustably connecting the arms to the journal box.

7. A car truck journal box, a lug on each side of the box, a casing, core and coil struc-- ture in the casing, spaced arms on the casing straddling the journal box, bolts passing through the lugs, and the slots in the arms, to adj ustably fasten thecasing to the journal box, a bearing block en each bolt, and a threaded spacing rod in each arm resting at one end on the bearing block.

In a receiver, a casing, a core structure iu the A.asing comprising two spaced cores, and a separate back strap connecting the spaced cores, and an insulated coil wound directly on, and non-rcn1ovable from, each of the spaced cores.

9. In a receiver, a casing, two core and coil units in the casing, a back strap bolted to, and interconiuaftil1g, the cores o said two units, each said unit including a core, a coil wound directly on the core, and insiiilating discs on the 'core at the ends of the coil and held in place at one end by a pole shoe fixed to the core, and at the outer end by clamps bolted to the core.

l0. In a receiver for automatic train control, a core, a coil wound directly on the core, and insulating discs on the core at the ends of the coil and held in place at one end by a pole shoe fixed to the core, and at the outer end by clamps bolted to the core.

l1. In a receiver, a casing, two core and coil units in the casing each comprising, a core, a coil Wound directly on the core, a separate back strap in the casing, and bolts each passing through a casing wall, a core of one of the units, and the back strap, for tightly clamping the units, the back strap, and the casing, in fixed relation.

l2. In a receiver, a casing, core and coil structure in said casing, projecting arms integral with said casing and spaced to straddle a car truck journal box, and means for fastening said arms at the opposite vertical sides of such journal box.

13. In a receiver, a casing, core and coil structure in said casing, projecting arms mf tegral with said casing and spaced to straddle a car truck journal box, and means for adjustably and rigidly fastening said arms at the opposite vertical sides of such journal box.

In testimony whereof I aiiix my signature.

CHARLES S. BUSHNELL. 

